I think we have enough leeway that we can afford a lynch or two outside of the "female" suspect.

What I find ironic is that out of the five suspects, three have directly voted for Shauna (Fynn, Formalhaut and FFNut). Lynching Shauna will pretty much confirm that two of these three players is mafia.

So basically if we lynch Shauna and she turns out to be town, we still gain a good amount of information and our odds get better the next day.